tighten up eh.setjmp sequence a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95603 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index a3a83dd..38734d9 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -813,22 +813,20 @@
// except for our own input by listing the relevant registers in Defs. By
// doing so, we also cause the prologue/epilogue code to actively preserve
// all of the callee-saved resgisters, which is exactly what we want.
+// The current SP is passed in $val, and we reuse the reg as a scratch.
let Defs =
[ R0, R1, R2, R3, R4, R5, R6, R7, R12 ] in {
- def tInt_eh_sjlj_setjmp : ThumbXI<(outs), (ins GPR:$src),
+ def tInt_eh_sjlj_setjmp : ThumbXI<(outs),(ins tGPR:$src, tGPR:$val),
AddrModeNone, SizeSpecial, NoItinerary,
- "mov\tr12, r1\t@ begin eh.setjmp\n"
- "\tmov\tr1, sp\n"
- "\tstr\tr1, [$src, #8]\n"
- "\tmov\tr1, pc\n"
- "\tadds\tr1, #9\n"
- "\tstr\tr1, [$src, #4]\n"
- "\tmov\tr1, r12\n"
+ "str\t$val, [$src, #8]\t@ begin eh.setjmp\n"
+ "\tmov\t$val, pc\n"
+ "\tadds\t$val, #9\n"
+ "\tstr\t$val, [$src, #4]\n"
"\tmovs\tr0, #0\n"
"\tb\t1f\n"
"\tmovs\tr0, #1\t@ end eh.setjmp\n"
"1:", "",
- [(set R0, (ARMeh_sjlj_setjmp GPR:$src))]>;
+ [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>;
}
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns